Addition & subtraction:
Learning Objectives:
3.NBT.2 Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.
Essential Concepts & Vocabulary:
addition, add, addend, regroup, total, subtraction, subtract, sum, ungroup, difference,
3.NBT.2 Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.
Essential Concepts & Vocabulary:
addition, add, addend, regroup, total, subtraction, subtract, sum, ungroup, difference,
addition strategies :
Place Value Addition, Addition on a Number Line, Addition with/without Regrouping, Show All Totals
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Subtraction strategies:
Place Value Subtraction, Subtraction on a Number Line, Subtraction with/without Ungrouping, Expanded Form Subtraction,
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